Home / 55,189.28-82,796.26-20,128.94

Finding the Fourth Proportional to 55,189.28, 82,796.26 and 20,128.94

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Solution

The fourth proportional to 55,189.28, 82,796.26 and 20,128.94 is: 30,197.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,189.28 : 82,796.26 = 20,128.94 : x
  2. Step 2: Convert to fraction form
    55,189.28/82,796.26 = 20,128.94/x
  3. Step 3: Cross multiply
    55,189.28x = 82,796.26 × 20,128.94
  4. Step 4: Simplify right side
    55,189.28x = 1,666,600,485.46
  5. Step 5: Solve for x
    x = 1,666,600,485.46/55,189.28
  6. Step 6: Final answer
    x = 30,197.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.